I have multiple line plots to draw on a single figure and I am doing this using bokeh.plotting. Using
p0.line(),
p0.extra_y_ranges(),
and
p0.add_layout(LinearAxes())
p0 being 1 bokeh figure.
I would like to have range_sliders for each y axis separately on the right. Would this be possible using bokeh?
For the primary y axis, the range slider works fine using
# set up RangeSlider y_counts
range_slider_c = RangeSlider(
title="c",
start=-10,
end=400,
step=1,
value=(-1, 300),
height = 250,
orientation='vertical',
show_value= False,
direction = 'rtl'
)
range_slider_c.js_link("value", p0.y_range, "start", attr_selector=0)
range_slider_c.js_link("value", p0.y_range, "end", attr_selector=1)
But I am unclear about how to call the additional y axes's ranges like I did for p0.y_range in js.link.
I hope I have been able to explain my requirements properly.
This answers is based on the answer on your previous question.
As it is mentioned there, the extra y-ranges are saved in a dictionary with the keyword extra_y_ranges
. Therefor you only have to change the js_link
using extra_y_ranges
with a valid name. For example range_slider_c.js_link("value", p0.extra_y_ranges["c", "start", attr_selector=0)
.
from bokeh.layouts import column
from bokeh.models import LinearAxis, Range1d, CustomJS, RangeSlider
from bokeh.plotting import figure, show, output_notebook
output_notebook()
data_x = [1,2,3,4,5]
data_y = [1,2,3,4,5]
color = ['red', 'green', 'magenta', 'black']
p = figure(plot_width=500, plot_height=300)
p.line(data_x, data_y, color='blue')
range_sliders = []
for i, c in enumerate(color, start=1):
name = f'extra_range_{i}'
lable = f'extra range {i}'
p.extra_y_ranges[name] = Range1d(start=0, end=10*i)
p.add_layout(LinearAxis(axis_label=lable, y_range_name=name), 'right')
p.line(data_x, data_y, color=c, y_range_name=name)
range_slider = RangeSlider(start=0, end=10*i, value=(1,9*i), step=1, title=f"Slider {lable}")
range_slider.js_link("value", p.extra_y_ranges[name] , "start", attr_selector=0)
range_slider.js_link("value", p.extra_y_ranges[name] , "end", attr_selector=1)
range_sliders.append(range_slider)
show(column(range_sliders+[p]))
To stack the sliders and the figure i use the column
layout, which takes a list of bokeh objects. Other layouts are available.